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TROUBLESHOOTING
TROUBLESHOOTING PROCEDURES
6.4. TROUBLESHOOTING PROCEDURES
There are two types of troubleshooting procedure.
•
For user-visible error conditions that the user could not clear up
•
For technician level error conditions
6.4.1. User-visible Error Conditions
1. Lamp Cover Open (ADF exposure cover interlock switch open)
Symptom:
The error remains even if the ADF exposure cover is closed properly.
Possible Cause:
•
ADF exposure cover broken
•
ADF exposure cover interlock switch is broken.
•
The SCU is broken.
•
The harness between the switch and SCU is damaged.
•
+24V power line failure
Procedure:
Does 24 volts come to the interlock switch?
Yes
No
Is the harness damaged?
Yes
Replace the harness.
Replace the interlock switch.
No
Replace the SCU.
6-4
October 9th, 1995
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